narayana/conversations-classic
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restore backup in one transaction

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This commit is contained in:
Daniel Gultsch 2020-07-16 11:25:25 +02:00
parent cb9623703d
commit 994fd9ecad
1 changed files with 11 additions and 6 deletions
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17
src/conversations/java/eu/siacs/conversations/services/ImportBackupService.java
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@ -17,6 +17,7 @@ import android.support.v4.app.NotificationManagerCompat;
import android.util.Log;
import com.google.common.base.Charsets;
import com.google.common.base.Stopwatch;
import com.google.common.io.CountingInputStream;
import org.bouncycastle.crypto.engines.AESEngine;
@ -189,6 +190,7 @@ public class ImportBackupService extends Service {
private boolean importBackup(final Uri uri, final String password) {
Log.d(Config.LOGTAG, "importing backup from " + uri);
final Stopwatch stopwatch = Stopwatch.createStarted();
try {
final SQLiteDatabase db = mDatabaseBackend.getWritableDatabase();
final InputStream inputStream;
@ -233,12 +235,13 @@ public class ImportBackupService extends Service {
final byte[] key = ExportBackupService.getKey(password, backupFileHeader.getSalt());
AEADBlockCipher cipher = new GCMBlockCipher(new AESEngine());
final AEADBlockCipher cipher = new GCMBlockCipher(new AESEngine());
cipher.init(false, new AEADParameters(new KeyParameter(key), 128, backupFileHeader.getIv()));
final CipherInputStream cipherInputStream = new CipherInputStream(countingInputStream, cipher);
final GZIPInputStream gzipInputStream = new GZIPInputStream(cipherInputStream);
BufferedReader reader = new BufferedReader(new InputStreamReader(gzipInputStream, Charsets.UTF_8));
final BufferedReader reader = new BufferedReader(new InputStreamReader(gzipInputStream, Charsets.UTF_8));
db.beginTransaction();
String line;
StringBuilder multiLineQuery = null;
while ((line = reader.readLine()) != null) {
@ -260,11 +263,13 @@ public class ImportBackupService extends Service {
}
}
}
db.setTransactionSuccessful();
db.endTransaction();
final Jid jid = backupFileHeader.getJid();
Cursor countCursor = db.rawQuery("select count(messages.uuid) from messages join conversations on conversations.uuid=messages.conversationUuid join accounts on conversations.accountUuid=accounts.uuid where accounts.username=? and accounts.server=?", new String[]{jid.getEscapedLocal(), jid.getDomain().toEscapedString()});
final Cursor countCursor = db.rawQuery("select count(messages.uuid) from messages join conversations on conversations.uuid=messages.conversationUuid join accounts on conversations.accountUuid=accounts.uuid where accounts.username=? and accounts.server=?", new String[]{jid.getEscapedLocal(), jid.getDomain().toEscapedString()});
countCursor.moveToFirst();
int count = countCursor.getInt(0);
Log.d(Config.LOGTAG, "restored " + count + " messages");
final int count = countCursor.getInt(0);
Log.d(Config.LOGTAG, String.format("restored %d messages in %s", count, stopwatch.stop().toString()));
countCursor.close();
stopBackgroundService();
synchronized (mOnBackupProcessedListeners) {
@ -274,7 +279,7 @@ public class ImportBackupService extends Service {
}
return true;
} catch (final Exception e) {
Throwable throwable = e.getCause();
final Throwable throwable = e.getCause();
final boolean reasonWasCrypto = throwable instanceof BadPaddingException || e instanceof ZipException;
synchronized (mOnBackupProcessedListeners) {
for (OnBackupProcessed l : mOnBackupProcessedListeners) {